Signal-operating mechanism.



M. MERKEL.

SGNAL OPERATING MECHANISM.

APPLICATION FILED MAY 1. 1916.

Patented Nov. 6, 1917.

WITNESSES ATTORNEY mum unnxnn, or cnnnsrnm, momma SIGNAL-OPERATINGMECHANISM;

* Specification of Letters Yatent.

Patented Nov. 6, 1917.

Application filed Kay 1, 1916. Serial No. 94,731.

To all whom it may concern v Be it known that I, MARTIN MERKEL, acitizen of the United States, residing at Celestine, in the county ofDubois and State of Indiana, have invented certain new and usefulImprovements in a Si al-Operating Mechanism, of which the ollowing is aspecification.

This invention relates to a device for operating an alarm mechanism andhas for its object to rovide means which in connection with an a armbell and particularly one operated 'by an electrical current will whenset for operation cause said bell to ring when any door or window towhich it is connected is opened or an attempt made to open it. v

A. further object of the invention is to provide an operating device forthe purpose which shall be simplaof few parts, easily applied by any oneto any existing bell circuit and which may when desired, as in thedaytime, he readily moved out of operative position.

With these as the princi al objects in view and others to be hereinafterset forth, the invention consists of the construction and arrangement ofparts here described-and illustrated in the accompanying drawing, inwhich: i

Figure 1 is a diagrammatic view showing the device in use in connectionwith a door and window.

' Fig. 2 is a side elevation the operating member enlarged, and,

3 is a cross sectional the line Referring to the drawing by numerals,'l-(l indicates a portion of a building of any kind in which 11 is alower room'and 12 an upper room. in the upper room there is mounted onthe wall ,or in some position convenient to a bed if one should sodesire it, a call hell of conventional type from which circuit wires 14extend to the room below where they terminate at a switch 15 of theusual push hutton variety fastened on one of the walls, one of thecircuit wires 1% passing through a battery 16 from which an electriccurrent is derived to operate the hell 13 when the switch 15 is closed.

Over the switch 15 is placed a cage or carrier 17 comprising two spacedplates 18 and 19 connected together by two oppositely disposed bracebars 20 that have outwardly turned feet 21 to rest upon the wall on eachthe cage upon the wall and for through the side of the switch 15,through one of which feet is passed a pin or screw 22 for mountingpermitting the same to swing to one side away from the switch whendesired as clearly shown in dotted lines in Fig. 3. Through the plates18 and 19 are formed a lurality of holes 23 for pins 24 which slideii'eely each in a hole in each of said plates and at such an angle thattheir inner ends overlie the push button 25 of the switch 15 andnormally maintain a short distance from said push button when set foroperation by cords, wires, or the like 26 that extend each from a pin24: toa door 27, window 28 or other closure which it is desired toprotect. Each pin 24 has an eye in its outer'end to which a cord or wire26 is fastened and passing from thence said wire or cord is led throughguides or over pulleys 29 to the door or window to which it is attached,the same being sufiiciently tight when (1001' or window is closed tohold the pin 24 away from the button 25 and the spring 130 surroundingsaid pin under com= pression. The springs 30 which surround the pins arepreferably helical springs and hear at one end against the plate 12 andat the other end against a split pin 31 passing pin 24,

As many pins :24 will be employed as there are doom and windows toprotect and when all or said doors and windows are closed the pins 2will be drawn away from the push button 25 of the switch 15 as shown inhowever, a door or window is unlawfully opened the cord or wires 26attached to said door or window will be loosened and the spring 30 onthe pin 24 being relieved pushes said pin toward the butten 25 andengaginghsaid button presses it inward and closes t e circuit throughthe bell 13 at the switch 15. The bell thus separating will warn anyonein the neighborhood that someone is trying to enter through a door orwindow in an unlawful manner.

During the day or when the device is not required, the cage or carrier17 will be turned to oneside' away from the switch 15 so that the pins24 will not contact with the-button 25 when the cords 26 are loosened bythe openin of .doors and windows.

Whi e I have shown and described what I consider at the present time tobe the best form of this invention, it is to be understood that variouschanges may he made in the construction and arrangement of the partswithin the limit of the claims without departing from the spirit of theinvention.

I clalm: v

1. In a signal operating mechanism, a fixed support, a switch mounted onsaid support and controlling an alarm, a carrier pivoted on said supportto swing in the plane thereof over said switch into operative positiontherewith, resiliently actuated means mounted on said carrier foroperating said switch, and a flexible connection between said actuatingmeans and a dooror window for holding said means inoperative when thedoor or window is closed.

2. In a signal operating mechanism, a switch controlling an alarm, acarrier pivotally mounted to swing over said switch, a plurality ofresiliently operated pins mounted in said carrier and adapted whenreleased to press upon and operate said switch, and

a flexible connection between each of said pins and a door or windowwhich when closed withdraws said pin from the switch and leaves thelatter inactive.

3. In a signal operating mechanism, a push button switch, a carrierivotally mounted to swing over and away om said switch, a pluralit ofpins mounted in said carrier and slida' le into engagement with saidswitch, a spring acting on each of said pins to force the same to closesaid switch, and a flexible connection from each of said pins to aclosure, which closures hold said connections under tension and the pinsaway from the switch until one of said closures is opened.

4. In a signal operating mechanism, a

' fixed support, a switch mounted on said support and controlling analarm, a carrier mounted on said support to be swung in the plane of thesupport into position over said switch, resiliently actuated meansmounted on said carrier for operating said switch, a hinge pivot formingthe sole means of mounting said carrier on the fixed support, and aflexible connection between said actuating means and a door or windowfor holding said means inoperative when the door or window is closed.

In testimony whereof I aflix my signature in presence of two witnesses.

MARTIN MERKEL.

Witnesses:

' HENRY K. MILLER,

ALBERT FRrrcH.

